Add item DataComponent implements (part 3)

level/component/instrument.go

@@ -0,0 +1,85 @@
+package component
+
+import (
+	"io"
+
+	pk "github.com/Tnze/go-mc/net/packet"
+)
+
+var _ DataComponent = (*Instrument)(nil)
+
+// TODO
+type Instrument struct {
+	Type        pk.VarInt
+	SoundEvent  SoundEvent
+	UseDuration pk.Float
+	Range       pk.Float
+}
+
+// ID implements DataComponent.
+func (Instrument) ID() string {
+	return "minecraft:instrument"
+}
+
+// ReadFrom implements DataComponent.
+func (i *Instrument) ReadFrom(r io.Reader) (n int64, err error) {
+	return pk.Tuple{
+		&i.Type,
+		pk.Opt{
+			Has: func() bool { return i.Type == 0 },
+			Field: pk.Tuple{
+				&i.SoundEvent,
+				&i.UseDuration,
+				&i.Range,
+			},
+		},
+	}.ReadFrom(r)
+}
+
+// WriteTo implements DataComponent.
+func (i *Instrument) WriteTo(w io.Writer) (n int64, err error) {
+	return pk.Tuple{
+		&i.Type,
+		pk.Opt{
+			Has: func() bool { return i.Type == 0 },
+			Field: pk.Tuple{
+				&i.SoundEvent,
+				&i.UseDuration,
+				&i.Range,
+			},
+		},
+	}.WriteTo(w)
+}
+
+// TODO
+type SoundEvent struct {
+	Type       pk.VarInt
+	SoundName  pk.Identifier
+	FixedRange pk.Option[pk.Float, *pk.Float]
+}
+
+func (s *SoundEvent) ReadFrom(r io.Reader) (int64, error) {
+	return pk.Tuple{
+		&s.Type,
+		pk.Opt{
+			Has: func() bool { return s.Type == 0 },
+			Field: pk.Tuple{
+				&s.SoundName,
+				&s.FixedRange,
+			},
+		},
+	}.ReadFrom(r)
+}
+
+func (s SoundEvent) WriteTo(w io.Writer) (int64, error) {
+	return pk.Tuple{
+		&s.Type,
+		pk.Opt{
+			Has: func() bool { return s.Type == 0 },
+			Field: pk.Tuple{
+				&s.SoundName,
+				&s.FixedRange,
+			},
+		},
+	}.WriteTo(w)
+}